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(11) | EP 0 862 332 A3 |
| (12) | EUROPEAN PATENT APPLICATION |
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| (54) | Motion picture converting apparatus |
| (57) To perform a motion picture format conversion at high speed in a motion picture converting
apparatus, the apparatus comprises: input means 101 for inputting a digital image
signal constituted of blocks, each block being orthogonally transformed; a frame memory
102 for storing the digital image signal; block reading means 103 for reading the
blocks or a macro block from the frame memory in response to a request; region dividing
section controlling means 109 for sending a read request to the block reading means;
component extracting means 104 for extracting a low-frequency component alone of the
captured image signal; two low-resolution frame memories 105 for storing extracted
information; motion detecting means 106 for detecting a motion in accordance with
the information in the low-resolution frame memories; a region dividing section 113
including macro block classifying means 107 for labeling the macro block in response
to a motion detection result by the motion detecting means and label storing means
114 for storing a label of the macro block; decoding means 110; an encoding section
111 for changing an encoding of the macro block in response to the label in the label
storing means; and output means 112 for outward outputting the coded signal. |